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u-boot/board/esd/pmc440/pmc440.c
Stefan Roese 550650ddd0 ppc4xx: Use common NS16550 driver for PPC4xx UART 
This patch removes the PPC4xx UART driver. Instead the common NS16550
driver is used, since all PPC4xx SoC's use this peripheral device.

The file 4xx_uart.c now only implements the UART clock calculation
function which also sets the SoC internal UART divisors.

All PPC4xx board config headers are changed to use this common NS16550
driver now.

Tested on these boards:
acadia, canyonlands, katmai, kilauea, sequoia, zeus

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00

905 lines
24 KiB
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/*
* (Cg) Copyright 2007-2008
* Matthias Fuchs, esd gmbh, matthias.fuchs@esd-electronics.com.
* Based on board/amcc/sequoia/sequoia.c
*
* (C) Copyright 2006
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* (C) Copyright 2006
* Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <asm/ppc440.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/bitops.h>
#include <command.h>
#include <i2c.h>
#ifdef CONFIG_RESET_PHY_R
#include <miiphy.h>
#endif
#include <serial.h>
#include <asm/4xx_pci.h>
#include "fpga.h"
#include "pmc440.h"
DECLARE_GLOBAL_DATA_PTR;
extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
extern void __ft_board_setup(void *blob, bd_t *bd);
ulong flash_get_size(ulong base, int banknum);
int pci_is_66mhz(void);
int is_monarch(void);
int bootstrap_eeprom_read(unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt);
struct serial_device *default_serial_console(void)
{
uchar buf[4];
ulong delay;
int i;
ulong val;
/*
* Use default console on P4 when strapping jumper
* is installed (bootstrap option != 'H').
*/
mfsdr(SDR0_PINSTP, val);
if (((val & 0xf0000000) >> 29) != 7)
return &eserial2_device;
ulong scratchreg = in_be32((void*)GPIO0_ISR3L);
if (!(scratchreg & 0x80)) {
/* mark scratchreg valid */
scratchreg = (scratchreg & 0xffffff00) | 0x80;
i = bootstrap_eeprom_read(CONFIG_SYS_I2C_BOOT_EEPROM_ADDR,
0x10, buf, 4);
if ((i != -1) && (buf[0] == 0x19) && (buf[1] == 0x75)) {
scratchreg |= buf[2];
/* bringup delay for console */
for (delay=0; delay<(1000 * (ulong)buf[3]); delay++) {
udelay(1000);
}
} else
scratchreg |= 0x01;
out_be32((void*)GPIO0_ISR3L, scratchreg);
}
if (scratchreg & 0x01)
return &eserial2_device;
else
return &eserial1_device;
}
int board_early_init_f(void)
{
u32 sdr0_cust0;
u32 sdr0_pfc1, sdr0_pfc2;
u32 reg;
/* general EBC configuration (disable EBC timeouts) */
mtdcr(EBC0_CFGADDR, EBC0_CFG);
mtdcr(EBC0_CFGDATA, 0xf8400000);
/*
* Setup the GPIO pins
* TODO: setup GPIOs via CONFIG_SYS_4xx_GPIO_TABLE in board's config file
*/
out_be32((void *)GPIO0_OR, 0x40000102);
out_be32((void *)GPIO0_TCR, 0x4c90011f);
out_be32((void *)GPIO0_OSRL, 0x28051400);
out_be32((void *)GPIO0_OSRH, 0x55005000);
out_be32((void *)GPIO0_TSRL, 0x08051400);
out_be32((void *)GPIO0_TSRH, 0x55005000);
out_be32((void *)GPIO0_ISR1L, 0x54000000);
out_be32((void *)GPIO0_ISR1H, 0x00000000);
out_be32((void *)GPIO0_ISR2L, 0x44000000);
out_be32((void *)GPIO0_ISR2H, 0x00000100);
out_be32((void *)GPIO0_ISR3L, 0x00000000);
out_be32((void *)GPIO0_ISR3H, 0x00000000);
out_be32((void *)GPIO1_OR, 0x80002408);
out_be32((void *)GPIO1_TCR, 0xd6003c08);
out_be32((void *)GPIO1_OSRL, 0x0a5a0000);
out_be32((void *)GPIO1_OSRH, 0x00000000);
out_be32((void *)GPIO1_TSRL, 0x00000000);
out_be32((void *)GPIO1_TSRH, 0x00000000);
out_be32((void *)GPIO1_ISR1L, 0x00005555);
out_be32((void *)GPIO1_ISR1H, 0x40000000);
out_be32((void *)GPIO1_ISR2L, 0x04010000);
out_be32((void *)GPIO1_ISR2H, 0x00000000);
out_be32((void *)GPIO1_ISR3L, 0x01400000);
out_be32((void *)GPIO1_ISR3H, 0x00000000);
/* patch PLB:PCI divider for 66MHz PCI */
mfcpr(CPR0_SPCID, reg);
if (pci_is_66mhz() && (reg != 0x02000000)) {
mtcpr(CPR0_SPCID, 0x02000000); /* 133MHZ : 2 for 66MHz PCI */
mfcpr(CPR0_ICFG, reg);
reg |= CPR0_ICFG_RLI_MASK;
mtcpr(CPR0_ICFG, reg);
mtspr(SPRN_DBCR0, 0x20000000); /* do chip reset */
}
/*
* Setup the interrupt controller polarities, triggers, etc.
*/
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC0ER, 0x00000000); /* disable all */
mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
mtdcr(UIC0PR, 0xfffff7ef);
mtdcr(UIC0TR, 0x00000000);
mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
mtdcr(UIC1ER, 0x00000000); /* disable all */
mtdcr(UIC1CR, 0x00000000); /* all non-critical */
mtdcr(UIC1PR, 0xffffc7f5);
mtdcr(UIC1TR, 0x00000000);
mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
mtdcr(UIC2SR, 0xffffffff); /* clear all */
mtdcr(UIC2ER, 0x00000000); /* disable all */
mtdcr(UIC2CR, 0x00000000); /* all non-critical */
mtdcr(UIC2PR, 0x27ffffff);
mtdcr(UIC2TR, 0x00000000);
mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC2SR, 0xffffffff); /* clear all */
/* select Ethernet pins */
mfsdr(SDR0_PFC1, sdr0_pfc1);
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
SDR0_PFC1_SELECT_CONFIG_4;
mfsdr(SDR0_PFC2, sdr0_pfc2);
sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
SDR0_PFC2_SELECT_CONFIG_4;
/* enable 2nd IIC */
sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_IIC1_SEL;
mtsdr(SDR0_PFC2, sdr0_pfc2);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/* setup NAND FLASH */
mfsdr(SDR0_CUST0, sdr0_cust0);
sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
SDR0_CUST0_NDFC_ENABLE |
SDR0_CUST0_NDFC_BW_8_BIT |
SDR0_CUST0_NDFC_ARE_MASK |
(0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
mtsdr(SDR0_CUST0, sdr0_cust0);
return 0;
}
#if defined(CONFIG_MISC_INIT_F)
int misc_init_f(void)
{
struct pci_controller hose;
hose.first_busno = 0;
hose.last_busno = 0;
hose.region_count = 0;
if (getenv("pciearly") && (!is_monarch())) {
printf("PCI: early target init\n");
pci_setup_indirect(&hose, PCIL0_CFGADR, PCIL0_CFGDATA);
pci_target_init(&hose);
}
return 0;
}
#endif
/*
* misc_init_r.
*/
int misc_init_r(void)
{
uint pbcr;
int size_val = 0;
u32 reg;
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
unsigned long sdr0_pfc1;
unsigned long sdr0_srst0, sdr0_srst1;
char *act = getenv("usbact");
/*
* FLASH stuff...
*/
/* Re-do sizing to get full correct info */
/* adjust flash start and offset */
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
mtdcr(EBC0_CFGADDR, PB2CR);
#else
mtdcr(EBC0_CFGADDR, PB0CR);
#endif
pbcr = mfdcr(EBC0_CFGDATA);
size_val = ffs(gd->bd->bi_flashsize) - 21;
pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
mtdcr(EBC0_CFGADDR, PB2CR);
#else
mtdcr(EBC0_CFGADDR, PB0CR);
#endif
mtdcr(EBC0_CFGDATA, pbcr);
/*
* Re-check to get correct base address
*/
flash_get_size(gd->bd->bi_flashstart, 0);
#ifdef CONFIG_ENV_IS_IN_FLASH
/* Monitor protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
-CONFIG_SYS_MONITOR_LEN,
0xffffffff,
&flash_info[0]);
/* Env protection ON by default */
(void)flash_protect(FLAG_PROTECT_SET,
CONFIG_ENV_ADDR_REDUND,
CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
&flash_info[0]);
#endif
/*
* USB suff...
*/
if ((act == NULL || strcmp(act, "host") == 0) &&
!(in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT)){
/* SDR Setting */
mfsdr(SDR0_PFC1, sdr0_pfc1);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
/*
* An 8-bit/60MHz interface is the only possible alternative
* when connecting the Device to the PHY
*/
usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;
usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
mtsdr(SDR0_PFC1, sdr0_pfc1);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2H0CR, usb2h0cr);
/*
* Take USB out of reset:
* -Initial status = all cores are in reset
* -deassert reset to OPB1, P4OPB0, OPB2, PLB42OPB1 OPB2PLB40 cores
* -wait 1 ms
* -deassert reset to PHY
* -wait 1 ms
* -deassert reset to HOST
* -wait 4 ms
* -deassert all other resets
*/
mfsdr(SDR0_SRST1, sdr0_srst1);
sdr0_srst1 &= ~(SDR0_SRST1_OPBA1 | \
SDR0_SRST1_P4OPB0 | \
SDR0_SRST1_OPBA2 | \
SDR0_SRST1_PLB42OPB1 | \
SDR0_SRST1_OPB2PLB40);
mtsdr(SDR0_SRST1, sdr0_srst1);
udelay(1000);
mfsdr(SDR0_SRST1, sdr0_srst1);
sdr0_srst1 &= ~SDR0_SRST1_USB20PHY;
mtsdr(SDR0_SRST1, sdr0_srst1);
udelay(1000);
mfsdr(SDR0_SRST0, sdr0_srst0);
sdr0_srst0 &= ~SDR0_SRST0_USB2H;
mtsdr(SDR0_SRST0, sdr0_srst0);
udelay(4000);
/* finally all the other resets */
mtsdr(SDR0_SRST1, 0x00000000);
mtsdr(SDR0_SRST0, 0x00000000);
if (!(in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT)) {
/* enable power on USB socket */
out_be32((void*)GPIO1_OR,
in_be32((void*)GPIO1_OR) & ~GPIO1_USB_PWR_N);
}
printf("USB: Host\n");
} else if ((strcmp(act, "dev") == 0) ||
(in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT)) {
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
udelay (1000);
mtsdr(SDR0_SRST1, 0x672c6000);
udelay (1000);
mtsdr(SDR0_SRST0, 0x00000080);
udelay (1000);
mtsdr(SDR0_SRST1, 0x60206000);
*(unsigned int *)(0xe0000350) = 0x00000001;
udelay (1000);
mtsdr(SDR0_SRST1, 0x60306000);
/* SDR Setting */
mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mfsdr(SDR0_USB2H0CR, usb2h0cr);
mfsdr(SDR0_USB2D0CR, usb2d0cr);
mfsdr(SDR0_PFC1, sdr0_pfc1);
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;
usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;
usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;
usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;
mtsdr(SDR0_USB2H0CR, usb2h0cr);
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2D0CR, usb2d0cr);
mtsdr(SDR0_PFC1, sdr0_pfc1);
/*clear resets*/
udelay(1000);
mtsdr(SDR0_SRST1, 0x00000000);
udelay(1000);
mtsdr(SDR0_SRST0, 0x00000000);
printf("USB: Device\n");
}
/*
* Clear PLB4A0_ACR[WRP]
* This fix will make the MAL burst disabling patch for the Linux
* EMAC driver obsolete.
*/
reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
mtdcr(PLB4A0_ACR, reg);
#ifdef CONFIG_FPGA
pmc440_init_fpga();
#endif
/* turn off POST LED */
out_be32((void*)GPIO1_OR, in_be32((void*)GPIO1_OR) & ~GPIO1_POST_N);
/* turn on RUN LED */
out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~GPIO0_LED_RUN_N);
return 0;
}
int is_monarch(void)
{
if (in_be32((void*)GPIO1_IR) & GPIO1_NONMONARCH)
return 0;
return 1;
}
int pci_is_66mhz(void)
{
if (in_be32((void*)GPIO1_IR) & GPIO1_M66EN)
return 1;
return 0;
}
int board_revision(void)
{
return (int)((in_be32((void*)GPIO1_IR) & GPIO1_HWID_MASK) >> 4);
}
int checkboard(void)
{
puts("Board: esd GmbH - PMC440");
gd->board_type = board_revision();
printf(", Rev 1.%ld, ", gd->board_type);
if (!is_monarch()) {
puts("non-");
}
printf("monarch, PCI=%s MHz\n", pci_is_66mhz() ? "66" : "33");
return (0);
}
#if defined(CONFIG_PCI) && defined(CONFIG_PCI_PNP)
/*
* Assign interrupts to PCI devices. Some OSs rely on this.
*/
void board_pci_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{
unsigned char int_line[] = {IRQ_PCIC, IRQ_PCID, IRQ_PCIA, IRQ_PCIB};
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE,
int_line[PCI_DEV(dev) & 0x03]);
}
#endif
/*
* pci_target_init
*
* The bootstrap configuration provides default settings for the pci
* inbound map (PIM). But the bootstrap config choices are limited and
* may not be sufficient for a given board.
*/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller *hose)
{
char *ptmla_str, *ptmms_str;
/*
* Set up Direct MMIO registers
*/
/*
* PowerPC440EPX PCI Master configuration.
* Map one 1Gig range of PLB/processor addresses to PCI memory space.
* PLB address 0x80000000-0xBFFFFFFF
* ==> PCI address 0x80000000-0xBFFFFFFF
* Use byte reversed out routines to handle endianess.
* Make this region non-prefetchable.
*/
out32r(PCIL0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute */
/* - disabled b4 setting */
out32r(PCIL0_PMM0LA, CONFIG_SYS_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIL0_PMM0PCILA, CONFIG_SYS_PCI_MEMBASE); /* PMM0 PCI Low Address */
out32r(PCIL0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
out32r(PCIL0_PMM0MA, 0xc0000001); /* 1G + No prefetching, */
/* and enable region */
if (!is_monarch()) {
ptmla_str = getenv("ptm1la");
ptmms_str = getenv("ptm1ms");
if(NULL != ptmla_str && NULL != ptmms_str ) {
out32r(PCIL0_PTM1MS,
simple_strtoul(ptmms_str, NULL, 16));
out32r(PCIL0_PTM1LA,
simple_strtoul(ptmla_str, NULL, 16));
} else {
/* BAR1: default top 64MB of RAM */
out32r(PCIL0_PTM1MS, 0xfc000001);
out32r(PCIL0_PTM1LA, 0x0c000000);
}
} else {
/* BAR1: default: complete 256MB RAM */
out32r(PCIL0_PTM1MS, 0xf0000001);
out32r(PCIL0_PTM1LA, 0x00000000);
}
ptmla_str = getenv("ptm2la"); /* Local Addr. Reg */
ptmms_str = getenv("ptm2ms"); /* Memory Size/Attribute */
if(NULL != ptmla_str && NULL != ptmms_str ) {
out32r(PCIL0_PTM2MS, simple_strtoul(ptmms_str, NULL, 16));
out32r(PCIL0_PTM2LA, simple_strtoul(ptmla_str, NULL, 16));
} else {
/* BAR2: default: 4MB FPGA */
out32r(PCIL0_PTM2MS, 0xffc00001); /* Memory Size/Attribute */
out32r(PCIL0_PTM2LA, 0xef000000); /* Local Addr. Reg */
}
if (is_monarch()) {
/* BAR2: map FPGA registers behind system memory at 1GB */
pci_hose_write_config_dword(hose, 0, PCI_BASE_ADDRESS_2, 0x40000008);
}
/*
* Set up Configuration registers
*/
/* Program the board's vendor id */
pci_hose_write_config_word(hose, 0, PCI_SUBSYSTEM_VENDOR_ID,
CONFIG_SYS_PCI_SUBSYS_VENDORID);
/* disabled for PMC405 backward compatibility */
/* Configure command register as bus master */
/* pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); */
/* 240nS PCI clock */
pci_hose_write_config_word(hose, 0, PCI_LATENCY_TIMER, 1);
/* No error reporting */
pci_hose_write_config_word(hose, 0, PCI_ERREN, 0);
pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
if (!is_monarch()) {
/* Program the board's subsystem id/classcode */
pci_hose_write_config_word(hose, 0, PCI_SUBSYSTEM_ID,
CONFIG_SYS_PCI_SUBSYS_ID_NONMONARCH);
pci_hose_write_config_word(hose, 0, PCI_CLASS_SUB_CODE,
CONFIG_SYS_PCI_CLASSCODE_NONMONARCH);
/* PCI configuration done: release ERREADY */
out_be32((void*)GPIO1_OR,
in_be32((void*)GPIO1_OR) | GPIO1_PPC_EREADY);
out_be32((void*)GPIO1_TCR,
in_be32((void*)GPIO1_TCR) | GPIO1_PPC_EREADY);
} else {
/* Program the board's subsystem id/classcode */
pci_hose_write_config_word(hose, 0, PCI_SUBSYSTEM_ID,
CONFIG_SYS_PCI_SUBSYS_ID_MONARCH);
pci_hose_write_config_word(hose, 0, PCI_CLASS_SUB_CODE,
CONFIG_SYS_PCI_CLASSCODE_MONARCH);
}
/* enable host configuration */
pci_hose_write_config_dword(hose, 0, PCI_BRDGOPT2, 0x00000101);
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
/*
* Override weak default pci_master_init()
*/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
void pci_master_init(struct pci_controller *hose)
{
/*
* Only configure the master in monach mode
*/
if (is_monarch())
__pci_master_init(hose);
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) */
static void wait_for_pci_ready(void)
{
int i;
char *s = getenv("pcidelay");
/*
* We have our own handling of the pcidelay variable.
* Using CONFIG_PCI_BOOTDELAY enables pausing for host
* and adapter devices. For adapter devices we do not
* want this.
*/
if (s) {
int ms = simple_strtoul(s, NULL, 10);
printf("PCI: Waiting for %d ms\n", ms);
for (i=0; i<ms; i++)
udelay(1000);
}
if (!(in_be32((void*)GPIO1_IR) & GPIO1_PPC_EREADY)) {
printf("PCI: Waiting for EREADY (CTRL-C to skip) ... ");
while (1) {
if (ctrlc()) {
puts("abort\n");
break;
}
if (in_be32((void*)GPIO1_IR) & GPIO1_PPC_EREADY) {
printf("done\n");
break;
}
}
}
}
/*
* Override weak is_pci_host()
*
* This routine is called to determine if a pci scan should be
* performed. With various hardware environments (especially cPCI and
* PPMC) it's insufficient to depend on the state of the arbiter enable
* bit in the strap register, or generic host/adapter assumptions.
*
* Rather than hard-code a bad assumption in the general 440 code, the
* 440 pci code requires the board to decide at runtime.
*
* Return 0 for adapter mode, non-zero for host (monarch) mode.
*/
#if defined(CONFIG_PCI)
int is_pci_host(struct pci_controller *hose)
{
char *s = getenv("pciscan");
if (s == NULL)
if (is_monarch()) {
wait_for_pci_ready();
return 1;
} else
return 0;
else if (!strcmp(s, "yes"))
return 1;
return 0;
}
#endif /* defined(CONFIG_PCI) */
#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
char *s;
unsigned short val_method, val_behavior;
/* special LED setup for NGCC/CANDES */
if ((s = getenv("bd_type")) &&
((!strcmp(s, "ngcc")) || (!strcmp(s, "candes")))) {
val_method = 0x0e0a;
val_behavior = 0x0cf2;
} else {
/* PMC440 standard type */
val_method = 0x0e10;
val_behavior = 0x0cf0;
}
if (miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x1f, 0x0001) == 0) {
miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x11, 0x0010);
miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x11, val_behavior);
miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x10, val_method);
miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x1f, 0x0000);
}
if (miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x1f, 0x0001) == 0) {
miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x11, 0x0010);
miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x11, val_behavior);
miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x10, val_method);
miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x1f, 0x0000);
}
}
#endif
#if defined(CONFIG_SYS_EEPROM_WREN)
/*
* Input: <dev_addr> I2C address of EEPROM device to enable.
* <state> -1: deliver current state
* 0: disable write
* 1: enable write
* Returns: -1: wrong device address
* 0: dis-/en- able done
* 0/1: current state if <state> was -1.
*/
int eeprom_write_enable(unsigned dev_addr, int state)
{
if ((CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) &&
(CONFIG_SYS_I2C_BOOT_EEPROM_ADDR != dev_addr)) {
return -1;
} else {
switch (state) {
case 1:
/* Enable write access, clear bit GPIO_SINT2. */
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~GPIO0_EP_EEP);
state = 0;
break;
case 0:
/* Disable write access, set bit GPIO_SINT2. */
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | GPIO0_EP_EEP);
state = 0;
break;
default:
/* Read current status back. */
state = (0 == (in_be32((void *)GPIO0_OR)
& GPIO0_EP_EEP));
break;
}
}
return state;
}
#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */
#define CONFIG_SYS_BOOT_EEPROM_PAGE_WRITE_BITS 3
int bootstrap_eeprom_write(unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt)
{
unsigned end = offset + cnt;
unsigned blk_off;
int rcode = 0;
#if defined(CONFIG_SYS_EEPROM_WREN)
eeprom_write_enable(dev_addr, 1);
#endif
/*
* Write data until done or would cross a write page boundary.
* We must write the address again when changing pages
* because the address counter only increments within a page.
*/
while (offset < end) {
unsigned alen, len;
unsigned maxlen;
uchar addr[2];
blk_off = offset & 0xFF; /* block offset */
addr[0] = offset >> 8; /* block number */
addr[1] = blk_off; /* block offset */
alen = 2;
addr[0] |= dev_addr; /* insert device address */
len = end - offset;
#define BOOT_EEPROM_PAGE_SIZE (1 << CONFIG_SYS_BOOT_EEPROM_PAGE_WRITE_BITS)
#define BOOT_EEPROM_PAGE_OFFSET(x) ((x) & (BOOT_EEPROM_PAGE_SIZE - 1))
maxlen = BOOT_EEPROM_PAGE_SIZE -
BOOT_EEPROM_PAGE_OFFSET(blk_off);
if (maxlen > I2C_RXTX_LEN)
maxlen = I2C_RXTX_LEN;
if (len > maxlen)
len = maxlen;
if (i2c_write (addr[0], offset, alen-1, buffer, len) != 0)
rcode = 1;
buffer += len;
offset += len;
#if defined(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS)
udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
#endif
}
#if defined(CONFIG_SYS_EEPROM_WREN)
eeprom_write_enable(dev_addr, 0);
#endif
return rcode;
}
int bootstrap_eeprom_read (unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt)
{
unsigned end = offset + cnt;
unsigned blk_off;
int rcode = 0;
/*
* Read data until done or would cross a page boundary.
* We must write the address again when changing pages
* because the next page may be in a different device.
*/
while (offset < end) {
unsigned alen, len;
unsigned maxlen;
uchar addr[2];
blk_off = offset & 0xFF; /* block offset */
addr[0] = offset >> 8; /* block number */
addr[1] = blk_off; /* block offset */
alen = 2;
addr[0] |= dev_addr; /* insert device address */
len = end - offset;
maxlen = 0x100 - blk_off;
if (maxlen > I2C_RXTX_LEN)
maxlen = I2C_RXTX_LEN;
if (len > maxlen)
len = maxlen;
if (i2c_read (addr[0], offset, alen-1, buffer, len) != 0)
rcode = 1;
buffer += len;
offset += len;
}
return rcode;
}
#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_BOARD_INIT)
int usb_board_init(void)
{
char *act = getenv("usbact");
int i;
if ((act == NULL || strcmp(act, "host") == 0) &&
!(in_be32((void*)GPIO0_IR) & GPIO0_USB_PRSNT))
/* enable power on USB socket */
out_be32((void*)GPIO1_OR,
in_be32((void*)GPIO1_OR) & ~GPIO1_USB_PWR_N);
for (i=0; i<1000; i++)
udelay(1000);
return 0;
}
int usb_board_stop(void)
{
/* disable power on USB socket */
out_be32((void*)GPIO1_OR, in_be32((void*)GPIO1_OR) | GPIO1_USB_PWR_N);
return 0;
}
int usb_board_init_fail(void)
{
usb_board_stop();
return 0;
}
#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_BOARD_INIT) */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
int rc;
__ft_board_setup(blob, bd);
/*
* Disable PCI in non-monarch mode.
*/
if (!is_monarch()) {
rc = fdt_find_and_setprop(blob, "/plb/pci@1ec000000", "status",
"disabled", sizeof("disabled"), 1);
if (rc) {
printf("Unable to update property status in PCI node, err=%s\n",
fdt_strerror(rc));
}
}
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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